filiateault



2 Sheets-Sheet 1.

(No Model.)

w. PILIATRAULT. TRACTION CABLE FOR DRAW BRIDGES.

Patented N0v. 26, 1889.

N. PETERS. Phelwunmn her. Walhinglnn. BIC.

(No Model.) 2 Sheets-Sheet '2.

W. IEILIATRAULT.v TRAGTION GABLE POR- DRAW BRIDGES.

No. 416,098. Patented Nov. 26,1889.

Nv PETERS. PhOID-Lilhflgrnphch Washmglon. n. c

UNITED STATES PATENT OFFICE.

IVILFRID FILIATRAULT: OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TOCHARLES CHEDRON AND JOSEPH DONLON, BOTH OF SAME PLACE.

TRACTION-CABLE FOR DRAW-BRIDGES.

SPECIFICATION forming part of Letters Patent No. 416,098, dated November26, 1889. Application filed September 23, 1889. Serial No. 324.803. (Homodel.)

To all whom it may concern.-

Be it known that I, WILFRID FILIATRAULT, 'a citizen of the UnitedStates, residing; at Chicago, in the county of Cook and State ofIllinois, haveinvented certain new and use ful Improvements in OperatingTraction- Cables over Draw-Bridges, of which the following is a full,clear, and exact description,

that will enable others to make and use the IO same, reference being hadto the accompanying drawings, forming a part of this specification.

This invention relates to an improved arrangement for runningtraction-cables over swing-lmidges, whereby the main cable can becarried across and operated continuously, whether the draw is opened orclosed.

Figure 1 is a diagram in perspective, showing the run or arrangement ofthe cable, the relative position of the bridge and approaches at eachside being indicated by dotted lines; Fig. 2, a plan as it would appearwith the flooring of the bridge removed; Fig. 3, a horizontal section inplane 3, Fig. 4; and Fig. 4, a vertical section in plane 4, Fig. 2, ofthe cable-tube located vertically in the central bridge-pier.

Referring to the drawings, A represents the main cable crossing thebridge in one direction, and B the return runningin the oppositedirection, the run of the cables being indicated by arrows.

The cable A from the street-conduit first runs over the sheave a,located in the abutment adjacent to the end of the bridge, down throughthe vertical tube C to and underneath the vertical sheave a, and aroundthe horizontal sheave a placed at right angles to the sheave a. Thisbrings the cable on a level With the river-bed, and is next conductedthrough the horizontal tube D to the middle of the central pier E.(Indicated by the dotted circle in Fig. At this point the cable passesunder the vertical sheave a up through the vertical tube F and over thevertical sheave a back to the endof the bridge on that side from whichit first started, and then returning around the horizontal sheave a andrunning to the oppo- 5 site or farther end of the bridge, and passingaround the horizontal sheave a, and then back to the central tube F andover the sheave C67,; down through the same to the lower end again, andunderneath the vertical sheave a and through the horizontal tube G, tothe opposite side of the stream from Which it started. IVhen the cableleaves the tube C, it passes around the horizontal sheave a under thevertical sheave a and then up through the tube H and over the verticalsheave a into the street again.

In operation the cable is dropped from the grip before the car passesonto the bridge, and the part (L of the cable on the bridge picked up atthe proper time to afford a continuous passage.

The carrying guide-sheaves of the returncable B are represented in theirorder, as b b b b b U 19 b b b b, the arrangement being precisely thesame as the sheaves of the companion cable A. By this arrangement theoperation of the cable is continuous, whether the draw is open orclosed. The bridge should always be turned back or closed in the samedirection in which it was opened, and not swung clear around.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a tractioircable system, the arrangement herein described forcrossing swingbridges, which consists in running the main cabledownwardly through the abutment on one side of the stream, then alongthe riverbed in a horizontal plane to the middle of and up through thecentral pier and back to the end of the bridge under the flooring onthat side from which. it started, then running to the opposite end ofthe bridge and back to and down through the central pier, and thencontinuing in a horizontal plane to the farther side and then up to andout into the street again, substantially as herein described.

2. In a traction-cable system for crossing swing-bridges, thecombination, with the bridge, of the cable, the vertical tube C, thehorizontal tube D, the vertical tube F, located in the central pier, thehorizontal t-ube G, the vertical tube II, and the series ofcarrying orguide sheaves, substantially as described.

IVILFRID FILIATRAULT.

Witnesses:

L. M. FREEMAN, J. B. DONALSON.

